Telephone country code +1 is North America, including the USA and Canada plus some miscellaneous island countries and territories.
Telephone area code +1 818 serves the San Fernando Valley area of greater Los Angeles, California, USA. Area code +1 747 is an overlay on +1 818, serving the same communities. Several other area codes serve other parts of the Los Angeles metropolitan area.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
0118 is not a valid telephone country code. First of all, telephone country codes never begin with zero.
Telephone country code +1 (dialed as 00 1 from many places) is North America, including the USA and Canada, but there are no valid numbers beginning with +1 18.
011 is the international access prefix for outbound international calls from North America, and country codes beginning with +8 are mostly in East Asia, plus some international telephone services. However, you need at least one more digit to be specific.
In the UK, 0118 is the domestic telephone area code for Reading; in international format, it's +44 118. The local number is a further 7 digits.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Telephone country code +1 is North America (USA, Canada, etc.), but there are no valid numbers beginning with +1 1.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Telephone country codes never begin with zero.
Country code +880, dialed as 00 880 from many places, is Bangladesh.
Country code +80, dialed as 008 80 from many places, is an incomplete code for a transnational telephone service. +800 is Universal International Freephone Numbers, and +808 is international shared-cost services. +800 numbers are free from participating countries; calls to +808 from participating countries are billed at rates similar to domestic long distance calls, with the recipient paying the remainder of the cost.
To avoid confusion, it is best to write an international telephone number in correct international format, beginning with the plus symbol and the correct telephone country code (e.g., +880 or +800), omitting any dialing prefix.
(The plus signmeans "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Telephone country code +881 is used for global satellite telephones, with the next digit indicating the operator. +881 8 is assigned to Globalstar.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Leichtenstein is telephone country code +423.
where is telephone country code 1816
That is not a country code.
There is no telephone country code +897, nor +89, nor any other country code beginning with +89. There are no valid telephone numbers beginning with +89.
Gibraltar is country code +350.
Moldova is country code +373.
Slovenia is country code +386.
Togo is country code +228.
Liberia is country code +231.
Angola is country code +244.
Mozambique is country code +258.
Niue is country code +683.